885370429718 Set nearly five years after the events of 'Halo 3,' 'Halo 4' follows the Master Chief and his faithful artificial intelligence (AI) companion Cortana as they venture into a mysterious new world and discover an overpowering ancient evil that threatens to annihilate mankind. With humanity's fate hanging in the balance, the Master Chief and Cortana are thrust into a desperate mission against overwhelming odds to save mankind from the threat of imminent extinction. Featuring a darker and more personal story that reintroduces the iconic hero as a genuinely human character, 'Halo 4' sets players on an epic sci-fi voyage that will span the next decade of 'Halo' games. 885370429718